CN101345318B - Humidification system of fuel cell - Google Patents
Humidification system of fuel cell Download PDFInfo
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- CN101345318B CN101345318B CN2007101226683A CN200710122668A CN101345318B CN 101345318 B CN101345318 B CN 101345318B CN 2007101226683 A CN2007101226683 A CN 2007101226683A CN 200710122668 A CN200710122668 A CN 200710122668A CN 101345318 B CN101345318 B CN 101345318B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a fuel battery dampening system, comprising a dampening device, a water and gas separator and a deionized device; the dampening device comprises a gas container which is provided with a gas inlet and a gas outlet which are communicated with the interior of the gas container; wherein, the dampening device also comprises an atomizing nozzle, a water quantity adjusting valve and a humidity measuring device; when the humidity of the gas detected by a humidity measuring device is not in the prearranged range, the water inlet quantity of the atomizing nozzle is adjusted by the water quantity adjusting valve till that the humidity of the gas detected by the humidity measuring device achieves the prearranged range. The humidity measuring device is added in the dampening device included in the fuel battery dampening system provided by the invention; therefore, the humidity of the gas can be controlled in real-time by adjusting the water inlet quantity of the atomizing nozzle according to the detected humidity.
Description
Technical field
The present invention relates to fuel cell field, relate in particular to a kind of fuel cell humidifying system.
Background technology
Proton Exchange Membrane Fuel Cells is a kind ofly to produce that hydrionic fuel and oxygen or air etc. contain oxidizing gas generation electrochemical reaction and the device that produces electric energy.When Proton Exchange Membrane Fuel Cells was worked, the proton in the battery all was to conduct by proton exchange membrane.Carry out proton transfer in a kind of mode of proton hydrate specifically, thereby form electric current.Therefore, in order to guarantee the continual work of Proton Exchange Membrane Fuel Cells energy, must make the proton exchange membrane in the fuel cell keep moistening.In the fuel cell operation process, especially the running of fuel cell pack, can produce a large amount of heats, the product water that is easy to cathode zone is produced is vaporized, and flowing fast of reacting gas can be taken away these moisture rapidly, makes that the film in the fuel cell dries out, cause the internal resistance of fuel cell to increase sharply, thereby the performance of battery sharply descend.Therefore, before reacting gas participates in reaction, need carry out humidification to reacting gas.
At present, humidification and outer humidification two classes in the method that the reacting gas of fuel cell is carried out humidification mainly contains.
Interior humidification is made into an integral body with humidification system and fuel cell exactly, need not to add humidifying device, and humidification can be considered to be at the inside of battery to carry out.The method of this humidification can reduce the shared weight and volume of fuel cell system, but, the mode of this humidification is difficult to reacting gas is entered the humidity of conversion zone to be controlled, if humidification causes electrode not had by water logging too easily, the performance of battery also descends.
Outer humidification is exactly to dispose a humidification system in addition, carries out humidification before reacting gas enters fuel cell.At present, adopt the method for outer humidification also to have a lot, such as the ultrasonic atomization humidification, doughnut humidification method etc.Shenli Science and Technology Co Ltd, Shanghai's patent (publication number: CN2751449) disclose a kind of fuel battery humidification device efficiently, promptly in the air compression plant of carrying air for fuel cell, spray into a certain amount of deionized water, the water yield that sprays into becomes certain ratio with the air capacity that this device is carried to fuel cell, and, make the compressed air that enters fuel cell reach the purpose of humidification through an efficient humidifier.But still there is certain defective in this class humidifying method for the fuel cell that power output alters a great deal, and as the timely humidity of adjustments of gas, consumed energy is too big during humidification.
Summary of the invention
The objective of the invention is to be difficult to shortcoming that the humidity of the reacting gas that enters fuel cell is in time regulated, a kind of fuel cell humidifying system that can control in real time the humidity of reacting gas is provided at existing fuel cell humidifying system.
Fuel cell humidifying system provided by the invention comprises humidifying device, moisture separator and deionizater, and described moisture separator is connected with deionizater; Wherein, described humidifying device comprises gas container, atomizer, water regulating valve and humidity measuring instrument; Gas container has gas inlet and the gas outlet with the gas container internal communication, and gas inlet is used for introducing the gas for the treatment of humidification to gas container, and gas outlet is used for the gas behind the humidification is introduced the membrane electrode of fuel cell; Atomizer comprises atomizing parts and water smoke outlet, and the atomizing parts are used to make water fogging, and the water smoke outlet is positioned at the inside of described gas container, is used for and will sprays into gas container through the water smoke after the atomizing; Water regulating valve is used to regulate the inflow of atomizer; Moisture separator be used for gas that fuel cell reaction is generated and moisture from, deionizater is used for the isolated water deionization of moisture separator; Humidity measuring instrument is positioned at the gas outlet place of gas container, be used to detect the humidity of the gas of gas coming through gas outlet, when the detected gas humidity of humidity measuring instrument is not in preset range, inflow by water regulating valve adjusting atomizer reaches in the preset range until the detected gas humidity of humidity measuring instrument.
The humidifying device that fuel cell humidifying system provided by the invention comprised has been introduced humidity measuring instrument, be used to detect the humidity of the reacting gas that enters fuel cell, inflow according to detected humidity regulation atomizer, thereby can control in real time the humidity of gas, overcome in the prior art fuel battery humidification device and can not in time regulate the shortcoming that enters the fuel cell reaction gas humidity.
Description of drawings
Fig. 1 is the structure chart of fuel cell humidifying system provided by the invention.
Fig. 2 is the structure chart of the atomizer of fuel battery humidification device in the fuel moisturization provided by the invention system.
Fig. 3 is the structure chart of a kind of preferred embodiment of fuel moisturization provided by the invention system.
Fig. 4 is the structure chart of a kind of preferred embodiment of fuel moisturization provided by the invention system.
Fig. 5 a, Fig. 5 b and Fig. 5 c are the structure chart of a kind of preferred embodiment of fuel cell humidifying system provided by the invention.
Fig. 6 is the first kind of embodiment of fuel cell humidifying system provided by the invention and the structure chart of the third embodiment.
Fig. 6 a, Fig. 6 b, Fig. 6 c and Fig. 6 d are the humidity controlling unit of fuel cell humidifying system provided by the invention and the structured flowchart that moisture signal transmits.
Fig. 7 is the second kind of embodiment of fuel cell humidifying system provided by the invention and the structure chart of the 4th kind of embodiment.
Fig. 8 is the 5th kind of embodiment of fuel cell humidifying system provided by the invention and the structure chart of the 7th kind of embodiment;
Fig. 9 is the 6th kind of embodiment of fuel cell humidifying system provided by the invention and the structure chart of the 8th kind of embodiment;
Figure 10 a, Figure 10 b, Figure 10 c and Figure 10 d are the liquid level control unit of fuel cell humidifying system provided by the invention and the structured flowchart that liquid level signal transmits.
Figure 11 a, Figure 11 b are the structure chart of a kind of preferred embodiment of fuel cell humidifying system provided by the invention.
Figure 12 is the 9th kind of embodiment of fuel cell humidifying system provided by the invention and the structure chart of the tenth kind of embodiment.
Figure 12 a is the structure chart of a kind of preferred embodiment of fuel cell humidifying system provided by the invention.
Figure 13 a, Figure 13 b are the high water tank control unit of fuel cell humidifying system provided by the invention and the structured flowchart that the high water tank signal transmits.
Figure 14 is the program flow diagram of first kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 15 is the program flow diagram of second kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 16 is the program flow diagram of the third embodiment of fuel cell humidifying system provided by the invention.
Figure 17 is the program flow diagram of the 4th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 18 is the program flow diagram of the 5th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 19 is the program flow diagram of the 6th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 20 is the program flow diagram of the 7th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 21 is the program flow diagram of the 8th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 22 is the program flow diagram of the 9th kind of embodiment of fuel cell humidifying system provided by the invention.
Figure 23 is the program flow diagram of the tenth kind of embodiment of fuel cell humidifying system provided by the invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, fuel cell humidifying system provided by the invention comprises humidifying device, moisture separator 34, deionizater 35; Described moisture separator 34 is connected with deionizater 35; Wherein, described humidifying device comprises gas container 1, atomizer 2, water regulating valve 17 and humidity measuring instrument 5; Gas container 1 has gas inlet 11 and the gas outlet 12 with gas container 1 internal communication, and gas inlet 11 is used for introducing the gas for the treatment of humidification to gas container 1, and gas outlet 12 is used for the gas behind the humidification is introduced the membrane electrode of fuel cell; Atomizer 2 comprises atomizing parts 22 and water smoke outlet 23, as shown in Figure 2; Atomizing parts 22 are used to make water fogging, and water smoke outlet 23 is positioned at the inside of described gas container 1, are used for and will spray into gas container 1 through the water smoke after the atomizing; Water regulating valve 17 is used to regulate the inflow of atomizer 2; Humidity measuring instrument 5 is positioned at gas outlet 12 places of gas container 1, is used to detect the gas humidity of gas coming through gas outlet 12; When humidity measuring instrument 5 detected gas humidities were not in preset range, the inflow by water regulating valve 17 adjusting atomizers 2 reached in the preset range until humidity measuring instrument 5 detected gas humidities; Moisture separator 34 be used for gas that fuel cell reaction is generated and moisture from; Deionizater 35 is used for moisture separator 34 isolated water deionizations.
The present invention can possess multiple regulatory function according to following description, also has liquid level to regulate or the like except the most basic humidity regulation, is described in detail below.
Humidity regulation
The nozzle of described atomizer 2 for making water fogging arbitrarily, for example, air atomizer spray nozzle.Atomizer 2 comprises atomizing parts 22 and water smoke outlet 23, and atomizing parts 22 produce superfine atomizing particle to make water fogging by compressed air and mixtures of liquids, produces water smoke to gas container 1 internal spray in water smoke outlet 23 afterwards.Atomizer 2 just can make water fogging not needing to consume under the situation of big energy, has reduced the energy consumption of humidifying device.
Under the preferable case, atomizer 2 is installed in the top of gas container 1, and water smoke outlet 23 sprays water smoke from top to bottom; The reacting gas of Liu Donging produces counter current contacting with the water smoke of ejection from top to bottom from the bottom up, and water smoke is more even with mixing of reacting gas.
Described humidifying device also comprises pipeline 16, and as shown in Figure 3, atomizer 2 is communicated with deionizater 35 by pipeline 16, supplies with atomizer 2 through the deionized water that deionizater 35 carries out after deionization is handled by pipeline 16; The connected mode of described pipeline 16 and atomizing parts 22 can be fixed or welds for screw thread.Pipeline 16 is the pipeline that water can be introduced atomizing parts 22 arbitrarily.
Described water regulating valve 17 is installed on the atomizing parts 22 or on the pipeline 16, is used to regulate the inflow of atomizer 2.Water regulating valve 17 for example can be manual or Mechanical Driven adjuster valve for regulating the valve of atomizer 2 inflows arbitrarily, perhaps is that electricity drives adjuster valve; The switching that the Mechanical Driven adjuster valve can come control valve by drive unit (for example motor); It for example is electromagnetically operated valve that electricity drives adjuster valve, can directly come the switching of control valve by the signal of telecommunication.
This system also comprises fuel cell 33, as shown in Figure 4, the oxidant gas import of fuel cell 33 is connected with the gas outlet 12 of gas container 1, be used for the air behind the humidification is incorporated into fuel cell 33, the gas of fuel cell 33 and generation water out are connected with the import of moisture separator 34, are used for reacting the water that generates and carry out the aqueous vapor separation.
Described humidity measuring instrument 5 be arbitrarily can detected gas humidity device.For example can be humidometer, the gas humidity that shows when humidometer (does not promptly enter the ideal humidity scope of the reacting gas of fuel cell at desirable humidity range, this scope is conventionally known to one of skill in the art, for example can be 10% between 90%) in the time must be in gas humidity reaches ideal range by staff's manual adjustments water regulating valve 17; Also can be for sending the humidity sensor of the signal of telecommunication of representing the humidity size, at this moment need to increase the humidity comparing unit that is set with the ideal humidity scope and judge whether detected humidity is suitable, and then automatic regulating pondage adjuster valve 17, this mode will specifically describe below; Can also be for setting the ultrasonic wave hygrometer of predetermined moisture scope (being the ideal humidity scope), measured humidity and this predetermined moisture scope can be compared, result according to comparison sends higher, the on the low side or normal signal of telecommunication of indication humidity, and this mode also will specifically describe below.Under the preferable case, humidity measuring instrument 5 maybe can send the humidity sensor of the signal of telecommunication of expression humidity size for the ultrasonic wave hygrometer that can set the predetermined moisture scope.
The gas that described moisture separator 34 generates fuel cell 33 reactions, water and the gas in the aqueous water are separated, for the device that aqueous vapor can be separated arbitrarily, as the aqueous vapor separating bottle.Under the preferable case, be filled with the material of honeycomb in the moisture separator 34, help to improve the effect that aqueous vapor is separated.
Described deionizater 35 is used for moisture separator 34 isolated water deionizations to purify water the formation deionized water; Described deionizater 35 is arbitrarily can be with the device of water deionization, as deionizing column.Under the preferable case, deionizater 35 is for being filled with the deionizing column of cation exchange resin structure.
To describe first to fourth kind of embodiment provided by the invention below, these four kinds of execution modes have all increased humidity controlling unit 27; Humidity controlling unit 27 receives from the signal of telecommunication of humidity measuring instrument 5 and according to the inflow of the indication regulating pondage adjuster valve 17 of the signal of telecommunication; According to the type difference of humidity measuring instrument 5, humidifying device can include only humidity controlling unit 27 or comprise humidity comparing unit 9 simultaneously and humidity controlling unit 27; Adopt humidity controlling unit 27 to make fuel cell humidifying system provided by the invention can regulate the humidity of the reacting gas that enters fuel cell automatically.
According to first kind of embodiment of the present invention, as shown in Figure 6, water regulating valve 17 is the mechanical adjustment valve by driving device controls; Described humidity measuring instrument 5 is for setting the ultrasonic wave hygrometer of predetermined moisture scope, and described humidifying device also comprises drive unit 3 and humidity controlling unit 27;
In advance humidity measuring instrument 5 is set a humidity range, as shown in figure 14;
When humidity measuring instrument 5 detected gas humidities going up in limited time more than or equal to predefined ideal humidity scope, humidity measuring instrument 5 sends the indication humidity signal of telecommunication bigger than normal to humidity controlling unit 27, humidity controlling unit 27 receives this signal, send accessory drive 3 to the signal of telecommunication of the direction motion that turns down water regulating valve 17 to drive unit 3, make the water yield minimizing that enters atomizer 2 by pipeline 16;
When being less than or equal to the following of predefined ideal humidity scope, humidity measuring instrument 5 detected gas humidities prescribe a time limit, humidity measuring instrument 5 sends the indication humidity signal of telecommunication less than normal to humidity controlling unit 27, humidity controlling unit 27 receives this signal, send accessory drive 3 to the signal of telecommunication of the direction motion of driving big yield adjuster valve 17 to drive unit 3, make the water yield increase that enters atomizer 2 by pipeline 16;
When gas humidity is in predefined ideal humidity scope, humidity measuring instrument 5 sends the normal signal of telecommunication of expression humidity to humidity controlling unit 27, humidity controlling unit 27 receives this signal of telecommunication, and the signal of telecommunication that sends accessory drive 3 stop motions is to drive unit 3.
According to second kind of embodiment of the present invention, as shown in Figure 7, water regulating valve 17 is for having the electromagnetically operated valve (electromagnetically operated valve can directly be controlled by the signal of telecommunication, so do not need the drive unit 3 in the execution mode) of control end; Described humidity measuring instrument 5 is for setting the ultrasonic wave hygrometer of predetermined moisture scope, and described humidifying device also comprises humidity controlling unit 27;
In advance humidity measuring instrument 5 is set a humidity range, as shown in figure 15;
When humidity measuring instrument 5 detected gas humidities going up in limited time more than or equal to predefined ideal humidity scope, humidity measuring instrument 5 sends the expression humidity signal of telecommunication bigger than normal to humidity controlling unit 27, humidity controlling unit 27 receives this signal of telecommunication, regulating pondage adjuster valve 17 makes the water yield minimizing that enters atomizer 2 by pipeline 16;
When being less than or equal to the following of predefined ideal humidity scope, humidity measuring instrument 5 detected gas humidities prescribe a time limit, humidity measuring instrument 5 sends the expression humidity signal of telecommunication less than normal to humidity controlling unit 27, humidity controlling unit 27 receives this signal of telecommunication, regulating pondage adjuster valve 17 makes the water yield increase that enters atomizer 2 by pipeline 16;
When humidity measuring instrument 5 detected gas humidities are between the upper and lower bound of predefined ideal humidity scope, humidity measuring instrument 5 sends the normal signal of telecommunication of expression humidity to humidity controlling unit 27, humidity controlling unit 27 receives this signal of telecommunication, and indication water regulating valve 17 is in current state.
According to the third embodiment provided by the invention, as shown in Figure 6, water regulating valve 17 is the mechanical adjustment valve by driving device controls; Described humidity measuring instrument 5 is for sending the humidity sensor of the signal of telecommunication of representing the humidity size, and described humidifying device also comprises drive unit 3, humidity comparing unit 9 and humidity controlling unit 27;
Humidity comparing unit 9 is used to receive the signal of telecommunication from humidity measuring instrument 5, and the signal of telecommunication of the expression humidity range of this signal of telecommunication and storage is compared, and comparison result is sent to humidity controlling unit 27;
Humidity comparing unit 9 preestablishes the signal of telecommunication scope of an expression humidity range, humidity comparing unit 9 receives the signal of telecommunication of humidity measuring instrument 5 detected expression gas humidity sizes, this signal of telecommunication and the signal of telecommunication scope of the expression humidity range of storing are in advance compared, as shown in figure 16;
When this signal of telecommunication is prescribed a time limit more than or equal to the going up of signal of telecommunication scope of the expression humidity range of storing in advance, humidity comparing unit 9 sends humidity instruction bigger than normal to humidity controlling unit 27, humidity controlling unit 27 receives this instruction, send accessory drive 3 to the signal of telecommunication of the direction motion that turns down water regulating valve 17 to drive unit 3, make the water yield minimizing that enters atomizer 2 by pipeline 16;
The following of signal of telecommunication scope that is less than or equal to the expression humidity range of storing in advance when this signal of telecommunication prescribed a time limit, humidity comparing unit 9 sends humidity instruction less than normal to humidity controlling unit 27, humidity controlling unit 27 receives this instruction, send accessory drive 3 to the signal of telecommunication of the direction motion of driving big yield adjuster valve 17 to drive unit 3, make the water yield increase that enters atomizer 2 by pipeline 16;
When this signal of telecommunication is between the upper and lower bound of the signal of telecommunication scope of the expression humidity range of storing in advance, humidity comparing unit 9 sends humidity to humidity controlling unit 27 and instructs normally, humidity controlling unit 27 receives this instruction, and the signal of telecommunication that sends accessory drive 3 stop motions is to drive unit 3.
According to the 4th kind of embodiment provided by the invention, as shown in Figure 7, water regulating valve 17 is for having the electromagnetically operated valve of control end; Described humidity measuring instrument 5 is for sending the humidity sensor of the signal of telecommunication of representing the humidity size, and described humidifying device also comprises humidity comparing unit 9 and humidity controlling unit 27;
Humidity comparing unit 9 is used to receive the signal of telecommunication from humidity measuring instrument 5, and the signal of telecommunication of the expression humidity range of this signal of telecommunication and storage is compared, and comparison result is sent to humidity controlling unit 27;
Humidity comparing unit 9 is preestablished the signal of telecommunication scope of an expression humidity range, humidity comparing unit 9 receives the signal of telecommunication of humidity measuring instrument 5 detected expression gas humidities, and this signal of telecommunication and the signal of telecommunication scope of expression humidity range of storage in advance compared, as shown in figure 17;
When this signal of telecommunication is prescribed a time limit more than or equal to the going up of signal of telecommunication scope of the expression humidity range of storing in advance, humidity comparing unit 9 sends the humidity signal of telecommunication bigger than normal to humidity controlling unit 27, humidity controlling unit 27 receives this instruction, regulating pondage adjuster valve 17 makes the water yield minimizing that enters atomizer 2 by pipeline 16;
The following of signal of telecommunication scope that is less than or equal to the expression humidity range of storing in advance when this signal of telecommunication prescribed a time limit, humidity comparing unit 9 sends the humidity signal of telecommunication less than normal to humidity controlling unit 27, humidity controlling unit 27 receives this instruction, regulating pondage adjuster valve 17 makes the water yield increase that enters atomizer 2 by pipeline 16;
When this signal of telecommunication is between the upper and lower bound of the signal of telecommunication scope of the expression humidity range of storing in advance, humidity comparing unit 9 sends the instruction that keeps inflow to humidity controlling unit 27, humidity controlling unit 27 receives this instruction, keeps water regulating valve 17 to be in current state.
In humidity regulation, described drive unit 3 be arbitrarily can regulating pondage adjuster valve 17 drive unit, for example, can be motor, utilize to rotate to drive water regulating valve 17 to opening direction motion big or that turn down by both forward and reverse directions.
Liquid level is regulated
Described gas container 1 is for to have and the gas inlet 11 of gas container 1 internal communication and the container of gas outlet 12, dry reacting gas enters from gas inlet 11, combine and humidification with the water smoke of water smoke outlet 23 ejections, the reacting gas behind the humidification flows out from gas outlet 12; The place that provides reacting gas to combine with water smoke is provided gas container 1.Under the preferable case, the gas inlet 11 of gas container 1 is in the bottom of gas container 1, and the gas outlet 12 of gas container 1 is on the top of gas container 1, and reacting gas enters from gas inlet 11, flow out from gas outlet 12, the reacting gas in the gas container 1 flows from the bottom up.
Owing in the water smoke many aqueous waters are arranged, can in gas container 1, stay aqueous water in the humidification process, shown in Fig. 5 a, gas container 1 can also tool and gas container 1 internal communication, be positioned at the delivery port 13 of gas container 1 bottom, and delivery port 13 is used for gas container 1 unnecessary water is discharged; Gas container can also have valve 7, and shown in Fig. 5 b, valve 7 is installed on the delivery port 13 of gas container 1 bottom, is the valve that can open or close arbitrarily, for example can be manual or Mechanical Driven valve, perhaps has the electromagnetic valve of control end; The Mechanical Driven valve must come the mechanically opening and closing of by-pass valve control by valve actuator (as motor); Electromagnetic valve can directly come the opening and closing of by-pass valve control by the signal of telecommunication.
This system also comprises liquid level emasuring device 6, and shown in Fig. 5 c, liquid level emasuring device 6 is arranged on the gas container 1, is used for the liquid level of the aqueous water of measurement gas container 1 inside.Under the preferable case, liquid level emasuring device 6 is arranged on the inside of gas container 1.
Described liquid level emasuring device 6 be arbitrarily can measurement gas container 1 in the device of liquid level, as liquid level gauge.If liquid level emasuring device 6 is common liquid level gauge, as the connected vessels type liquid level gauge, liquid level in the gas container 1 that liquid level gauge shows must not reached in the ideal range by the liquid level of staff's manual adjustments valve 7 in gas container 1 when desirable liquid level scope (gas inlet 11 of the described gas container 1 of the aspect ratio of described liquid level range limit hangs down 1-3 centimetre, the delivery port 13 high 1-3 of the described gas container 1 of aspect ratio of described liquid level scope lower limit centimetres) is interior; If liquid level emasuring device 6 as floating ball lever meter, at this moment need judge whether detected liquid level is suitable by the liquid level comparing unit that is set with desirable liquid level scope for sending the liquid level gauge of the expression liquid level signal of telecommunication just, and then the switching of by-pass valve control 7; If liquid level emasuring device 6 is for setting the ultrasonic level gage of predetermined fluid level scope (being desirable liquid level scope), then can set a desirable liquid level scope to liquid level emasuring device 6 in advance, liquid level emasuring device 6 can be compared measured liquid level and this predetermined fluid level scope, sends the biased height of indicator solution, the on the low side or normal signal of telecommunication according to the result who compares.Under the preferable case, liquid level emasuring device 6 maybe can send the floating ball lever meter of the signal of telecommunication of expression liquid level height for the ultrasonic level gage that can set the predetermined fluid level scope.
The the provided by the invention the 5th to the 8th kind of embodiment will be described below, these several execution modes have adopted liquid level control unit 28, according to the type difference of liquid level emasuring device 6, this system can include only liquid level control unit 28 or comprise liquid level comparing unit 15 and liquid level control unit 28; Adopt liquid level control unit 28 to make that the liquid level of gas container 1 can remain within the desirable liquid level scope of setting in the fuel cell humidifying system provided by the invention, gas access 11 is stopped up, reacting gas is revealed from delivery port 13.
According to the 5th kind of embodiment provided by the invention, as shown in Figure 8, valve 7 is the Mechanical Driven valve by driving device controls; Described liquid level emasuring device 6 is for setting the ultrasonic level gage of predetermined fluid level scope, and this system also comprises valve actuator 25 and liquid level control unit 28;
Liquid level emasuring device 6 is used for the liquid level of detected gas container 1 and judges liquid level whether in predetermined scope, and testing result is sent to liquid level control unit 28; Liquid level control unit 28 is used for the testing result according to liquid level emasuring device 6, by-pass valve control drive unit 25 and then control valve 7;
Liquid level emasuring device 6 is connected with gas container 1, and valve actuator 25 is connected with valve 7, is used to drive valve 7, and valve 7 is opened or closed; Shown in Figure 10 a, liquid level control unit 28 is connected with valve actuator 25 with liquid level emasuring device 6 respectively;
In advance liquid level emasuring device 6 is set a liquid level scope, as shown in figure 18;
When the liquid level of the measured gas container 1 of liquid level emasuring device 6 going up in limited time more than or equal to the liquid level scope of storage in advance, liquid level emasuring device 6 sends the higher signal of telecommunication of expression liquid level to liquid level control unit 28, liquid level control unit 28 receives this signal of telecommunication, send by-pass valve control drive unit 25 to the signal of telecommunication of the direction motion of opening big valve 7 to valve actuator 25, make water in the gas container 1 from delivery port 13 discharges;
Be less than or equal in advance when liquid level emasuring device 6 measured liquid levels under the liquid level scope of storage in limited time, liquid level emasuring device 6 sends expression liquid level signal on the low side to liquid level control unit 28, liquid level control unit 28 receives this instruction, send by-pass valve control drive unit 25 to the signal of telecommunication of the direction motion of closing minor valve 7 to valve actuator 25, prevent the water leakage in the gas container 1;
When the measured liquid level of liquid level emasuring device 6 is between the liquid level scope of storage in advance, liquid level emasuring device 6 sends the normal signal of telecommunication of expression liquid level to liquid level control unit 28, liquid level control unit 28 receives this instruction, and the signal of telecommunication that sends 25 stop motions of by-pass valve control drive unit is to valve actuator 25.
According to the 6th kind of embodiment provided by the invention, as shown in Figure 9, valve 7 is for having the electromagnetic valve (electromagnetically operated valve can directly be controlled by the signal of telecommunication, so do not need the valve actuator 25 in the execution mode) of control end; Described liquid level emasuring device 6 is for setting the ultrasonic level gage of predetermined fluid level scope, and this system also comprises liquid level control unit 28;
Liquid level emasuring device 6 is used for the liquid level of detected gas container 1 and judges liquid level whether in predetermined scope, and testing result is sent to liquid level control unit 28, and liquid level control unit 28 is used for the testing result control valve 7 according to liquid level emasuring device 6;
Liquid level emasuring device 6 is connected with gas container 1, and liquid level control unit 28 is connected with valve 7 with liquid level emasuring device 6 respectively, shown in Figure 10 b;
In advance liquid level emasuring device 6 is set a liquid level scope, as shown in figure 19;
When the liquid level of the measured gas container 1 of liquid level emasuring device 6 during more than or equal to the liquid level range limit of storage in advance, liquid level emasuring device 6 sends the higher signal of telecommunication of expression liquid level to liquid level control unit 28, liquid level control unit 28 receives this signal of telecommunication, open valve 7, make that the water in the gas container 1 is discharged from delivery port 13;
Be less than or equal to when the liquid level of the measured gas container 1 of liquid level emasuring device 6 under the liquid level scope of storage in advance in limited time, liquid level emasuring device 6 sends expression liquid level signal on the low side to liquid level control unit 28, liquid level control unit 28 receives this instruction, valve-off 7 prevents that the water in the gas container 1 from revealing;
When the measured liquid level of liquid level emasuring device 6 was between the liquid level scope of storage in advance, liquid level emasuring device 6 sent the normal signal of telecommunication of expression liquid level to liquid level control unit 28, and liquid level control unit 28 receives these instructions, keeps valve 7 to be in current state.
According to the 7th kind of embodiment provided by the invention, as shown in Figure 8, valve 7 is the Mechanical Driven valve by driving device controls; Described liquid level emasuring device 6 is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, and this system also comprises valve actuator 25, liquid level comparing unit 15 and liquid level control unit 28;
Liquid level emasuring device 6 is used for the liquid level of detected gas container 1, and testing result is sent to liquid level comparing unit 15;
Liquid level comparing unit 15 receives the signal of telecommunication from liquid level emasuring device 6, and the signal of telecommunication of the expression liquid level scope of this signal of telecommunication and storage is compared, and comparison result is sent to liquid level control unit 28;
Liquid level control unit 28 is used to receive the comparison result from liquid level comparing unit 15, and according to comparison result, by-pass valve control drive unit 25 is with control valve 7;
Liquid level control unit 28 is connected with valve actuator 25, and valve actuator 25 is connected with valve 7, is used to drive valve 7, and valve 7 is opened or closed; Liquid level emasuring device 6 is connected with liquid level comparing unit 15, is connected to liquid level control unit 28, shown in Figure 10 c;
Liquid level comparing unit 15 stores the signal of telecommunication scope of an expression liquid level scope in advance, liquid level comparing unit 15 receives the signal of telecommunication of the liquid level in the measured expression gas container 1 of liquid level emasuring device 6, and this signal of telecommunication and the signal of telecommunication scope of expression liquid level scope of storage in advance compared, as shown in figure 20;
When this signal of telecommunication is prescribed a time limit more than or equal to the going up of signal of telecommunication scope of the expression liquid level scope of storing in advance, liquid level comparing unit 15 sends the higher instruction of liquid level to liquid level control unit 28, liquid level control unit 28 receives this instruction, send by-pass valve control drive unit 25 to the signal of telecommunication of the direction motion of opening big valve 7 to valve actuator 25, make water in the gas container 1 from delivery port 13 discharges;
The following of signal of telecommunication scope that is less than or equal to the expression liquid level scope of storing in advance when this signal of telecommunication prescribed a time limit, liquid level comparing unit 15 sends liquid level instruction on the low side to liquid level control unit 28, liquid level control unit 28 receives this instruction, send by-pass valve control drive unit 25 to the signal of telecommunication of the direction motion of closing minor valve 7 to valve actuator 25, prevent the water leakage in the gas easy 1;
When this signal of telecommunication is between the signal of telecommunication scope of the expression liquid level scope of storing in advance, liquid level comparing unit 15 sends liquid level to liquid level control unit 28 and instructs normally, liquid level control unit 28 receives this instruction, and the signal of telecommunication that sends 25 stop motions of by-pass valve control drive unit is to valve actuator 25.
According to the 8th kind of embodiment of the present invention, as shown in Figure 9, valve 7 is for having the electromagnetic valve of control end; Described liquid level emasuring device 6 is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, and this system also comprises liquid level comparing unit 15 and liquid level control unit 28;
Liquid level emasuring device 6 is used for the liquid level of detected gas container 1, and testing result is sent to liquid level comparing unit 15;
Liquid level comparing unit 15 is used to receive the signal of telecommunication from liquid level emasuring device 6, and the signal of telecommunication of the expression liquid level scope of this signal of telecommunication and storage is compared, and comparison result is sent to liquid level control unit 28;
Liquid level control unit 28 is used to receive the comparison result from liquid level comparing unit 15, according to comparison result, and control valve 7.
Liquid level comparing unit 15 stores the signal of telecommunication scope of an expression liquid level scope in advance, liquid level comparing unit 15 receives the signal of telecommunication of the liquid level in the measured expression gas container 1 of liquid level emasuring device 6, and this signal of telecommunication and the signal of telecommunication scope of expression liquid level scope of storage in advance compared, as shown in figure 21;
When this signal of telecommunication is prescribed a time limit more than or equal to the going up of signal of telecommunication scope of the expression liquid level scope of storing in advance, liquid level comparing unit 15 sends the higher instruction of liquid level to liquid level control unit 28, liquid level control unit 28 receives this instruction, open valve 7, make that the water in the gas container 1 is discharged from delivery port 13;
The following of signal of telecommunication scope that is less than or equal to the expression liquid level scope of storing in advance when this signal of telecommunication prescribed a time limit, liquid level comparing unit 15 sends liquid level instruction on the low side to liquid level control unit 28, liquid level control unit 28 receives this instruction, and valve-off 7 prevents that the water in the gas container 1 from revealing;
When this signal of telecommunication was between the upper and lower bound of the signal of telecommunication scope of the expression liquid level scope of storage, liquid level comparing unit 15 sent liquid level to liquid level control unit 28 and instructs normally, and liquid level control unit 28 receives this instruction, kept the current state of valve 7.
In liquid level is regulated, described valve actuator 25 be arbitrarily can control valve 7 drive unit, for example, can be motor, utilize by both forward and reverse directions rotating band movable valve 7 and move to opening direction big or that turn down.
High water tank is regulated
Owing to need use for humidification for humidifying device supplies water, this system also can comprise priming apparatus 32 and water tank 36, priming apparatus 32 is used for adding water to water tank 36, described pipeline 16 is communicated with atomizer 2 with deionizater 35 and water tank 36, be used for the water of water tank 36 is introduced atomizing parts 22, shown in Figure 11 a;
Described priming apparatus 32 is arbitrarily can be to the device of water tank supplying deionized water, for example the deionized water water pipe; Described water tank is for storing the container of water, for example tank arbitrarily.
This system also can comprise high water tank measurement mechanism 20, and shown in Figure 11 b, high water tank measurement mechanism 20 is arranged on the water tank 36, is used to measure the liquid level of water tank 36 inside.Under the preferable case, high water tank measurement mechanism 20 is arranged on the inside of water tank 36.
Described high water tank measurement mechanism 20 is for measuring the instrument of the liquid level of water in the water tank 36, for example liquid level gauge arbitrarily; If high water tank measurement mechanism 20 is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, at this moment need be by being set with desirable liquid level scope (low 1-3 centimetre of the edge of the described water tank 36 of the aspect ratio of described liquid level range limit, the high 1-3 in bottom of the described water tank 36 of aspect ratio of described liquid level scope lower limit centimetre) the liquid level discrimination unit judge whether detected liquid level suitable, and then control priming apparatus 32 add water to water tank 36; If high water tank measurement mechanism 20 is for setting the ultrasonic level gage of predetermined fluid level scope (being desirable liquid level scope), then can set a desirable liquid level scope to high water tank measurement mechanism 20 in advance, high water tank measurement mechanism 20 can be compared measured liquid level and this predetermined fluid level scope, sends the biased height of indicator solution, the on the low side or normal signal of telecommunication according to the result who compares.
The the provided by the invention the 9th and the tenth embodiment will be described below, these two kinds of execution modes have adopted the high water tank control unit 31 of water tank 36, according to the type difference of high water tank measurement mechanism 20, this system can include only high water tank control unit 31 or comprise high water tank comparing unit 30 simultaneously and high water tank control unit 31; Described fuel cell humidifying system adopts high water tank control unit 31 to make the liquid level in the water tank 36 maintain in the setting range, has realized the automatic control of high water tank.
According to the 9th kind of embodiment of the present invention, as shown in figure 12, described high water tank measurement mechanism 20 is for setting the ultrasonic level gage of predetermined fluid level scope, and this system also comprises high water tank control unit 31;
High water tank measurement mechanism 20 is used for detecting the liquid level of water tank 36 and judges liquid level whether in predetermined scope, and testing result is sent to high water tank control unit 31; High water tank control unit 31 is used for the testing result according to high water tank measurement mechanism 20, control priming apparatus 32;
High water tank measurement mechanism 20 1 ends are connected with water tank 36, and the other end is connected with high water tank control unit 31, and priming apparatus 32 is connected with high water tank control unit 31, shown in Figure 13 a;
In advance high water tank measurement mechanism 20 is set a liquid level scope, as shown in figure 22;
When the liquid level that high water tank measurement mechanism 20 records is prescribed a time limit more than or equal to the going up of liquid level scope of storage in advance, high water tank measurement mechanism 20 sends the higher signal of telecommunication of expression liquid level to high water tank control unit 31, high water tank control unit 31 receives this signal of telecommunication, stops priming apparatus 32 and adds water to water tank 36;
The liquid level that records when high water tank measurement mechanism 20 be less than or equal to storage in advance the liquid level scope following in limited time, high water tank measurement mechanism 20 sends the expression liquid level signal of telecommunication on the low side to high water tank control unit 31, high water tank control unit 31 receives this signal of telecommunication, starts priming apparatus 32 and adds water to water tank 36.
According to the of the present invention ten kind of embodiment, described high water tank measurement mechanism 20 is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, and this system also comprises high water tank comparing unit 30 and high water tank control unit 31;
High water tank measurement mechanism 20 is used for detecting the liquid level of water tank 36, and testing result is sent to high water tank comparing unit 30;
High water tank comparing unit 3 receives the signal of telecommunication from high water tank measurement mechanism 20, and the signal of telecommunication of the expression liquid level scope of this signal of telecommunication and storage is compared, and comparison result is sent to high water tank control unit 31;
High water tank control unit 31 is used to receive the comparison result from high water tank comparing unit 30, according to comparison result, and control priming apparatus 32;
High water tank measurement mechanism 20 1 ends are connected with water tank 36, and the other end is connected with high water tank comparing unit 30, is connected to high water tank control unit 31, and priming apparatus 32 is connected with high water tank control unit 31, shown in Figure 13 b;
High water tank comparing unit 30 stores the signal of telecommunication scope of an expression liquid level scope in advance, high water tank comparing unit 30 receives the signal of telecommunication of liquid level in the measured expression water tank of high water tank measurement mechanism 20, and this signal of telecommunication and the signal of telecommunication scope of expression liquid level scope of storage in advance compared, as shown in figure 23;
When this signal of telecommunication is prescribed a time limit more than or equal to the going up of signal of telecommunication scope of the expression liquid level scope of storing in advance, high water tank comparing unit 30 sends the instruction that keeps liquid level to high water tank control unit 31, high water tank control unit 31 receives this instruction, stops priming apparatus 32 and adds water to water tank 36;
The following of signal of telecommunication scope that is less than or equal to described expression liquid level scope when this signal of telecommunication prescribed a time limit, high water tank comparing unit 30 sends liquid level instruction on the low side to high water tank control unit 31, high water tank control unit 31 receives this instruction, starts priming apparatus 32 and adds water to water tank 36.
In order to reduce the number of times for the water of humidification use that adds water tank 36, the outlet of deionizater 35 can be communicated with water tank 36, and import can be communicated with the delivery port 13 that is positioned at gas container 1 bottom, shown in Figure 12 a; Aqueous water unnecessary in the gas container 1 is discharged through delivery port 13, enters deionizater 35 and carries out the deionization processing, enters then in the water tank 36 and uses for humidification.
In humidity regulation, liquid level adjusting and high water tank are regulated, described humidity controlling unit 27 is arbitrarily can be according to the controller of indication accessory drive 3 or water regulating valve 17, described liquid level control unit 28 is arbitrarily can be according to the controller of indication by-pass valve control drive unit 25 or valve 7, described high water tank control unit 31 is can for example can be PLC or single-chip microcomputer according to the controller of indication control priming apparatus 32 arbitrarily.
Claims (12)
1. fuel cell humidifying system, this system comprises humidifying device, moisture separator (34), deionizater (35), described moisture separator (34) is connected with deionizater (35), it is characterized in that described humidifying device comprises gas container (1), atomizer (2), water regulating valve (17), humidity measuring instrument (5), humidity comparing unit (9) and humidity controlling unit (27);
Gas container (1) has gas inlet (11) and the gas outlet (12) with gas container (1) internal communication, gas inlet (11) is used for introducing the gas for the treatment of humidification to gas container (1), and gas outlet (12) is used for the gas behind the humidification is introduced the membrane electrode of fuel cell;
Atomizer (2) comprises atomizing parts (22) and water smoke outlet (23), and atomizing parts (22) are used to make water fogging, and water smoke outlet (23) is positioned at the inside of described gas container (1), is used for spraying into gas container (1) through the water smoke after the atomizing;
Water regulating valve (17) is used to regulate the inflow of atomizer (2) for having the electromagnetically operated valve of control end;
Humidity measuring instrument (5) is positioned at the gas outlet (12) of gas container (1) to be located, and is used to detect the humidity of the gas of gas coming through gas outlet (12), and the signal of telecommunication that sends expression humidity size is given humidity comparing unit (9);
Humidity comparing unit (9) is used for receiving the signal of telecommunication from humidity measuring instrument (5), and the signal of telecommunication of the expression humidity range of this signal of telecommunication and storage is compared, and comparison result is sent to humidity controlling unit (27);
Humidity controlling unit (27) is used for receiving the comparison result from humidity comparing unit (9), according to comparison result, and regulating pondage adjuster valve (17);
Moisture separator (34) be used for gas that fuel cell reaction is generated and moisture from;
Deionizater (35) is used for the isolated water deionization of moisture separator (34).
2. fuel cell humidifying system according to claim 1, it is characterized in that, described humidifying device also comprises pipeline (16), and atomizer (2) links to each other with deionizater (35) by pipeline (16), and described water regulating valve (17) is installed on the parts (22) that atomize or on the pipeline (16).
3. fuel cell humidifying system according to claim 1 and 2, it is characterized in that, gas container (1) has with gas container (1) internal communication, is positioned at the delivery port (13) of gas container (1) bottom and is installed in valve (7) on the delivery port (13), delivery port (13) is used for the water that gas container (1) is unnecessary discharges, and valve (7) is used to control the water yield of delivery port (13).
4. fuel cell humidifying system according to claim 3 is characterized in that, this system also comprises liquid level emasuring device (6), and liquid level emasuring device (6) is arranged on the gas container (1), is used for the liquid level of the inner aqueous water of measurement gas container (1).
5. fuel cell humidifying system according to claim 4 is characterized in that, valve (7) is for having the electromagnetic valve of control end; Described liquid level emasuring device (6) is for setting the ultrasonic level gage of predetermined fluid level scope, and this system also comprises liquid level control unit (28);
Liquid level emasuring device (6) is used for the liquid level of detected gas container (1) and judges that liquid level is whether in predetermined scope, and testing result sent to liquid level control unit (28), liquid level control unit (28) is used for the testing result control valve (7) according to liquid level emasuring device (6).
6. fuel cell humidifying system according to claim 4 is characterized in that, valve (7) is for having the electromagnetic valve of control end; Described liquid level emasuring device (6) is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, and this system also comprises liquid level comparing unit (15) and liquid level control unit (28);
Liquid level emasuring device (6) is used for the liquid level of detected gas container (1), and testing result is sent to liquid level comparing unit (15);
Liquid level comparing unit (15) is used for receiving the signal of telecommunication from liquid level emasuring device (6), and the signal of telecommunication of the expression liquid level scope of this signal of telecommunication and storage is compared, and comparison result is sent to liquid level control unit (28);
Liquid level control unit (28) is used for receiving the comparison result from liquid level comparing unit (15), according to comparison result, and control valve (7).
7. fuel cell humidifying system according to claim 2, it is characterized in that, this system also comprises priming apparatus (32) and water tank (36), priming apparatus (32) is used for adding water to water tank (36), described pipeline (16) is communicated with atomizer (2) with deionizater (35) and water tank (36), be used for the water of water tank (36) is introduced atomizing parts (22).
8. fuel cell humidifying system according to claim 7 is characterized in that, this system also comprises high water tank measurement mechanism (20), and high water tank measurement mechanism (20) is arranged on the water tank (36), is used to measure the inner liquid level of water tank (36).
9. fuel cell humidifying system according to claim 8 is characterized in that, described high water tank measurement mechanism (20) is for setting the ultrasonic level gage of predetermined fluid level scope, and this system also comprises high water tank control unit (31);
High water tank measurement mechanism (20) is used for detecting the liquid level of water tank (36) and judges liquid level whether in predetermined scope, and testing result is sent to high water tank control unit (31); High water tank control unit (31) is used for the testing result according to high water tank measurement mechanism (20), control priming apparatus (32).
10. fuel cell humidifying system according to claim 8, it is characterized in that, described high water tank measurement mechanism (20) is for sending the floating ball lever meter of the expression liquid level signal of telecommunication just, and this system also comprises high water tank comparing unit (30) and high water tank control unit (31);
High water tank measurement mechanism (20) is used for detecting the liquid level of water tank (36), and testing result is sent to high water tank comparing unit (30);
High water tank comparing unit (30) receives the signal of telecommunication from high water tank measurement mechanism (20), and the signal of telecommunication of the expression liquid level scope of this signal of telecommunication and storage is compared, and comparison result is sent to high water tank control unit (31);
High water tank control unit (31) is used for receiving the comparison result from high water tank comparing unit (30), according to comparison result, and control priming apparatus (32).
11. fuel cell humidifying system according to claim 7 is characterized in that, the outlet of deionizater (35) communicates with water tank (36).
12. fuel cell humidifying system according to claim 1 and 2 is characterized in that, the import of deionizater (35) communicates with gas container (1).
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| CN2007101226683A CN101345318B (en) | 2007-07-10 | 2007-07-10 | Humidification system of fuel cell |
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| CN2007101226683A CN101345318B (en) | 2007-07-10 | 2007-07-10 | Humidification system of fuel cell |
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| CN101345318B true CN101345318B (en) | 2010-06-16 |
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Cited By (2)
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| CN109960300A (en) * | 2017-12-14 | 2019-07-02 | 南京大学 | A kind of fuel cell test gas humidification method |
| CN115064730A (en) * | 2022-05-27 | 2022-09-16 | 冠驰新能科技(南京)有限公司 | Humidifying method for full life cycle of fuel cell |
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| CN109960299B (en) * | 2017-12-14 | 2020-12-22 | 南京大学 | Humidification module of high-power fuel cell stack tester |
| CN111370735B (en) * | 2020-03-19 | 2021-07-02 | 浙江锋源氢能科技有限公司 | Fuel cell humidifying system |
| CN113964348B (en) * | 2021-10-19 | 2023-08-01 | 上海恒劲动力科技有限公司 | Humidification device with real-time response of humidification characteristics, fuel cell and control method |
| CN114570193A (en) * | 2022-03-30 | 2022-06-03 | 江苏万贤环境工程有限公司 | Biological deodorization equipment and deodorization method thereof |
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